Amazon Basics 4-Pack 9 Volt Lithium High-Performance Batteries, 10-Year Shelf Life, Long Lasting Power

Customers find these lithium batteries to be of excellent quality and value, noting they work well in smoke alarms and deliver consistent power. The 9-year shelf life is appreciated, though some report they don't last as long as expected. Customers disagree on whether the batteries are rechargeable, and several mention they are too big for some devices.